Dr. Pulley
Dr. Pulley 20x17mm Sliding Roller Weights - Set of 6
Description
These Dr. Pulley 20x17 Sliding Roller Weights are a set of six sliders that unlock more performance from the CVT on Vespa and Piaggio 200-300cc scooters. Unlike round rollers that develop flat spots over time, Dr. Pulley's patented non-round shape slides through the variator ramps. That lets the variator sit lower for stronger launches and open wider for higher top speed. Choose from ten weights, 9.5g to 13g, to match your riding style.
Key Features
- Patented sliding shape: Resists the flat spots and uneven wear common with round rollers.
- Wider gear range: Stronger take-off and higher top end compared to round rollers.
- Bearing-grade material: Low-friction, self-lubricating composite.
- Non-abrasive fiber: Gentle on aluminum variators.
- Brass-bushed center: Smooth, even contact with the variator.
- Ten weight options: Fine-tune acceleration versus top speed.
Technical Specifications
- Part number: 1200-1112
- Manufacturer part number: SR2017
- Size: 20mm x 17mm
- Quantity: Set of 6
- Weights available: 9.5g, 10g, 10.5g, 10.7g, 11g, 11.2g, 11.5g, 12g, 12.5g, 13g
- Material: Bearing-grade self-lubricating composite with brass bushing
- Brand: Dr. Pulley
Compatibility
| Make | Models | Engine |
|---|---|---|
| Vespa | Granturismo 200 | 200cc Leader |
| Vespa | GTS / GTV 250 and 300 | 250cc Quasar / 300cc HPE |
| Piaggio | BV 200 / 250 / 300 | Leader / Quasar / HPE |
| Aprilia | Scarabeo / SportCity 200-300 | Piaggio-based |
Before ordering, pull one of your original rollers and confirm it measures 20mm x 17mm. Works with stock variators and most aftermarket variators built for 20x17 rollers.
Weight Selection Guide
- Lighter (9.5g to 10.7g): Better hill climbing and city acceleration, higher RPM cruising.
- Mid-range (11g to 12g): Balanced daily commuting.
- Heavier (12.5g to 13g): Higher top speed and lower RPM cruising on flat roads.
Installation Notes
Orientation is critical. The blocked side of each slider must face the direction of rotation. Inspect the variator slide pieces for wear before installing, since worn guides prevent smooth sliding action.
Product Diagrams
Features
Specifications
Part Number: 1200-1112 | MPN: SR2017 | Size: 20x17mm | Quantity: Set of 6 | Weights: 9.5, 10, 10.5, 10.7, 11, 11.2, 11.5, 12, 12.5, 13g | Material: Bearing-grade composite, brass bushing | Brand: Dr. Pulley
Model Fitments
Vespa Granturismo 200, GTS/GTV 250 & 300; Piaggio BV 200, 250, 300; Aprilia Scarabeo & SportCity 200-300cc (Piaggio-based engines)
-
Same day shipping for orders placed before 2PM (CST) M-F
-
30-day return period on eligible items
-
Flat-rate shipping for orders shipped to the 48 Contiguous United States.
